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Proceedings Paper

Laser diode for DVD pickup head
Author(s): Man-Fang Huang; How-Chiang Lee; Jin-Kuo Ho; Hung-Cheng Lin; Chenn-Shi Cheng; Chau-Chong Kuo; Yen-Kuang Kuo
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Paper Abstract

General requirements of AlGaInP/InGaP laser diode (LD) for digital versatile disk (DVD) optical pick-up head application, such as wavelength, output power, astigmatism, mode profile, and relative intensity noise will be discussed in this paper. Several efforts which have been made to develop AlGaInP/InGaP laser diodes suitable for DVD application will be reviewed. To record or erase signals in a DVD system, an output power of about 30 mW from AlGaInP/InGaP laser diode is required. Several methods which were proposed to increase catastrophic optical damage level will also be reviewed. Several methods which were proposed to increase catastrophic optical damage (COD) level will also be reviewed. A low-power 650-nm-band AlGaInP/InGaP laser diode utilizing double-channel ridge waveguide structure has been developed at OES/ITRI. Good characteristics of this laser diode such as very low operation current, small astigmatism, and stable fundamental transverse mode operation at a power level of more than 10 mW were obtained. A hybrid optical pick-up head utilizing this laser diode was incorporated in a commercial DVD-video player and functioned with a very good quality.

Paper Details

Date Published: 22 June 1998
PDF: 0 pages
Proc. SPIE 3419, Optoelectronic Materials and Devices, 34190F (22 June 1998); doi: 10.1117/12.310997
Show Author Affiliations
Man-Fang Huang, Industrial Technology Research Institute (Taiwan)
How-Chiang Lee, Industrial Technology Research Institute (Taiwan)
Jin-Kuo Ho, Industrial Technology Research Institute (Taiwan)
Hung-Cheng Lin, Industrial Technology Research Institute (China)
Chenn-Shi Cheng, Industrial Technology Research Institute (China)
Chau-Chong Kuo, Industrial Technology Research Institute (Taiwan)
Yen-Kuang Kuo, National Changhua Univ. of Education (Taiwan)


Published in SPIE Proceedings Vol. 3419:
Optoelectronic Materials and Devices
Marek Osinski; Yan-Kuin Su, Editor(s)

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